100+ bought since yesterdayOverall pick

Mucinex Fast-Max Severe Congestion & Cough Medicine, OTC Sinus/Nasal Decongestant, Expectorant, 6 fl oz

4.6 stars out of 1549 reviews
(4.6)|
1,549 ratings

Key item features

  • COUGH COLD AND FLU MEDICINES FOR ADULTS: Maximum Strength Mucinex® Fast Max Severe Congestion & Cough provides powerful multi-symptom relief for your worst symptoms including cough, chest congestion, and nasal congestion
  • EXPECTORANTS AND DECONGESTANTS FOR ADULTS : Maximum Strength Mucinex® Fast-Max Severe Congestion & Cough has a triple action formula that relieves nasal & chest congestion, controls cough & thins & loosens mucus to help clear lungs of excess mucus
  • POWERFUL COUGH & COLD ACTIVE INGREDIENTS: Contains Dextromethorphan HBr - Cough suppressant; Guaifenesin - Expectorant; Phenylephrine HCI - Nasal decongestant
  • TRUSTED BRAND: Mucinex® is the #1 Cough & Cold Brand Doctor's Trust* and is also the #1 Pharmacist Recommended Brand†; Get the brand that doctors trust and recommend!
  • USAGE: Use as directed; For ages 12+ years
  • FSA & HSA ELIGIBLE: Save Up to 30% on eligible products when you pay with your FSA/HSA card; Cover out-of-pocket expenses with pre-tax dollars**
  • *IQVIA using ProVoice Survey, August 2023; †U.S. News & World Report/Pharmacy Times 2023-2024; **Product eligibility may vary by plan - Check with your benefits administrator to determine which expenses are eligible before you shop
Current price is $13.97$2.33/fl oz
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Mucinex Fast-Max Severe Congestion & Cough Medicine, OTC Sinus/Nasal Decongestant, Expectorant, 6 fl oz $13.97 $2.33/fl oz

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Mucinex Fast-Max Severe Congestion & Cough Medicine, OTC Sinus/Nasal Decongestant, Expectorant, 6 fl oz

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Customer ratings & reviews

4.6 out of 5 stars
stars1,549 ratings340 reviews
How item rating is calculated

Reviews summary

Pros
  • : Relieves symptoms in a short time frame.
  • : Allows for restful nights with minimal disruptions.
  • : Relieves coughing fits and congestion rapidly.
  • : Helps break up and thin mucus in this area.
  • : Relieves and breaks up chest congestion.
Neutral
  • : Can be fruity, but also strong and medicinal.
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Showing 1-3 of 340 reviews

Sep 16, 2025
Suzie
Top Reviewer
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Good Stuff

I had Covid and I was unable to get medication for it. So I ordered this and I have to say that it did a pretty good job. I was so congested and had bad aches and pains in my muscles. This really helped with the aches in my muscles and the congestion. I would highly recommend it.

Helpful?52ATJBP35POX17235796
Feb 13, 2026
Cassandra
Top Reviewer
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Great product. For mucas, sinus %26 cough without tylenol, so you're not treating fever too soon and of course because acetaminophen decreases glutathione which helps your body clear toxins, including viruses %26 bacteria! So it's a bad idea when your sick. This product lets you separate these things allowing you to add ibuprofen or aspirin if needed.

Helpful?52ATJBP35POX17235796
Feb 11, 2026
Sami
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

This medication definitely works like magic! Highly recommend for congestion!!! I read all the reviews first, and they were right on the money! Can't recommend more! Absolutely 💯 works! It does taste like strong medicine, but to me, as long as it works, I don't care what it tastes like!

Helpful?52ATJBP35POX17235796